BIOCHEMICAL INDICATORS OF DROUGHT TOLERANCE OF CORN

DOI: 10.5584/jiomics.v10i1.309

Abstract

The paper deals with impact of water deficit and heat shock on activity of sucrose-phosphate synthase (SPS) – (UDP-glucose: D-fructose-6-phosphat-2-α-glucosyltransferase, E.C. 2.4.1.14) – an enzyme involved in sucrose synthesis, on activity of lectins, as well as sucrose and abscisic acid (ABA) content in germinating kernels of corn lines with different drought tolerance (Zea mays L.). The paper demonstrates that corn lines, which are positively different in terms of drought tolerance, are characterized by varying activity of lectins, abscisic acid, sucrose-phosphate synthase and sucrose content in tissues of the aboveground part and roots of sprouts under the impact of adverse abiotic factors (water deficit and hyperthermia).